Saguaros

How Old is that Saguaro?

Scientific effort reveals the history of a saguaro’s life.

Script: Barbara Terkanian
Scientific Advisor: Alberto Búrquez

Images (in order of appearance):

Saguaro, Benjamin T. Wilder
Map of Saguaros on Tumamoc Hill in 1909, Volney Spalding
Saguaro, Benjamin T. Wilder
Saguaro research, Paul Mirocha
Saguaro spine growth sequence images, Paul Mirocha
Saguaro height-age graph, Benjamin T. Wilder and Barbara Terkanian
Saguaro in bloom, Paul Mirocha
Saguaro in bloom, Paul Mirocha
Saguaro, Paul Mirocha